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I am sorry for a naive question but how do you prove there is lag? Isn't it subjective? And also if you were to show 0-60 time is less couldn't BMW just blame it on throttle response (they never advertised "immediate throttle response" right?).
I am just curious that's all. I want BMW to fix this issue too but don't see how we can prove anything...
Is there any way to show that the engine is not making 300hp at 1500 rpm as claimed?
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